China Oil Gas 3PE Pipeline Girth Welding Coating Heat Shrink Sleeve

Oil Gas 3PE Pipeline Girth Welding Coating Heat Shrink Sleeve
INTRODUCTION
PE heat shrinkable tape (sleeve) is composed of cross-linked polyethylene back and special heat melt adhesive. Heat melt adhesive has good bonding with PE back, steel pipe and Fusion bonded epoxy (FBE layer). By heating PE back shrinks, adhesive layer melts, and closely wraps around pipe joints, then it forms together with FBE a firm and continuous anti-corrosion body. It is resistant to corrosion, wear, impact, UV and aging,easier to be operated.
Wrap around products
Application area:
It is mainly used for wrapping around pipe, anti-corrosion of kinds of pipe joints, and repairing pipes.
For example: Oil and gas pipe, PU insulation pipe, 3PE/2PE steel pipe.
TEST PROCEDURE AND TEST RESULT
TEST PROCEDURE
1. Clean the steel pipe and heat it by fire till over 80 ºC
2. Paint the steel pipe with Primer (mixed with A&B)

3. Fire heat the heat shrink sleeve, be attention to start heating from middle of the sleeve, but act from up and down, and gradually move from middle to two sides of sleeve, in order to drive air out of the sleeve, after finish heating, the good result is that there is about 1-2mm hot adhesive melt at the edge of sleeve.
TEST RESULT
1. Test result after cooling about 40 minutes.
Peel strength to primer is over 100N per 2cm(till the end of the spring balance). at 30.7ºC
Co-adhesive: Half-half.


2. Test result after cooling about 24hours.
Peel strength to primer is over 172N per 2cm at room temperature about 30.7ºC
Co-adhesive: Half-half.
Application:
Radiation cross-linked Polyethylene (PE) Heat Shrinkable Sleeve is mainly used in anti-corrosion pipe, oil gas pipeline, fit for 3PE oil gas steel pipe also, 2PE steel pipe, thermal insulating pipe, epoxy powder coating, and PE drainage pipe etc. We have National Patent certifications for this product.
Advantage
Radiation crosslinked PE heat shrinkable sleeve is made by basic material and melt adhesive. Our product has strong adhensive to make sure good quality of product; Easy operation, quick shrinking, low cost, perfect anti-water, anti-chemical corrosion, good insulativity and aging resistance. It is ideal material of anti-corrosion and thermal insulating system.
EVA is imported. Brand Matsui Japan or Dupont USA
The heat shrinkable sleeve has been exported to Vietnam, Sudan, Kenya, Russia, Kazakhstan, Australia, Turkey etc.
Specifications
---3 Layer PE Coating Pipe
---Offeshore & Underground
---Oil, gas, water pipeline
---DIA2''-72''
---Pipeline size: From Ø 108 to Ø 1554 ( 4''---60'')
Sleeves width: 100mm, 150mm, 200mm, 300mm, 450mm, 500mm, 600mm, 900mm
Closure patch: 100mm, 150mm, 200mm (4'', 6'', 8'')
Product Structure
The inner layer is two-components epoxy primer which coated on steel pipe;
Intermediate level is special hot melt adhesive;
Outer layer is modified radiation crossing linking polyethylene backing.
Features & Benefits
Heat Shrinkable Sleeves provide great corrosion protection, superior resistance to cathodic disbandment and excellent durability against abrasion and chemical attack. The result is effective, good performance of sealing, wide application, easy to operate and preheating temperature low (50° C), long term protection against corrosion.
Cross-linked backing provides superior abrasion, mechanical and chemical attack resistance.
High performance adhesive provides excellent resistance to Cathodic Disbondment to ensure long-term corrosion protection.
Just-in-time customized lengths allow bulk rolls to be field cut to protect any pipe size
Open sleeve configuration allows the product to be applied after the pipeline has been welded and cleaned.
NOText ItemUnitPerformance
Text ResultText MethodBack Material1Tensile StrengthMPa≥1719.47ASTM D6382Elongation %≥400626ASTM D6383Vicat Softening PointºC≥9092ASTM D15254Brittleness TemperatureºC<-65<-65ASTM D2671C5Dielectric StrengthMV/m≥2533.13ASTM D1496Volume ResistivityΩ.m≥1*10131.1*1013ASTM D2577Environment Stress Crackh≥1000>1000GB/T1842
8
Chemical
resistance
(7d)10%
HCITensile strengthMPa≥85104.9ASTM D638Elongation %≥8596.3ASTM D63810%
NaAH Tensile strengthMPa≥85102.1ASTM D638Elongation%≥8595.6ASTM D63810%
NaCLTensile strengthMPa≥85108.3ASTM D638Elongation%≥8594.1ASTM D6389Thermal aging
(150ºC,168h)Tensile strengthMPa≥1420.7ASTM D638Elongation%≥300630ASTM D638
NO.Text ItemUnitPerformance
Text ResultText MethodAdhesive 1Softening PointºC≥9090.1ASTM E282Brittleness TemperatureºC<-15<-15ASTM D2671C3Lap ShearMPa≥1.01.5ASTM D1002
4
Peel Strength
(23±2ºC)Steel N/cm≥70145.6ASTM D1000Primer N/cm≥70205.9ASTM D1000PE layerN/cm≥70190.0ASTM D1000Non-solvent Epoxy Primer5Shear of cured primerMPa≥5.012SY/T0041